import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/User.vue'
import Rights from '../power/Rights.vue'
import Roles from '../power/Roles.vue'
import Cate from '../components/good/Cate.vue'
Vue.use(VueRouter)

const routes = [
  // 路由重定向 通过redirect 自动重定向
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome', // 路由重定向
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: Users },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/categories', component: Cate }
    ]
  }
]

const router = new VueRouter({
  routes
})
// 挂载路由导航守卫
router.beforeEach((to, form, next) => {
  //  to 将要访问的路径
  // from 代表从哪个路径跳转而来
  //  next 是一个函数， 表示放行
  //  next() 放行   next('./login) 强制跳转

  if (to.path === '/login') {
    return next()
  }
  // 获取token
  // console.log(11)
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
